EP 4200389 A1 20230628 - CLEANING SOLVENT COMPOSITIONS EXHIBITING AZEOTROPE-LIKE BEHAVIOR AND THEIR USE
Title (en)
CLEANING SOLVENT COMPOSITIONS EXHIBITING AZEOTROPE-LIKE BEHAVIOR AND THEIR USE
Title (de)
REINIGUNGSLÖSUNGSMITTELZUSAMMENSETZUNGEN MIT AZEOTROPARTIGEM VERHALTEN UND DEREN VERWENDUNG
Title (fr)
COMPOSITIONS DE SOLVANT DE NETTOYAGE FAISANT PREUVE D'UN COMPORTEMENT DE TYPE AZÉOTROPE ET LEUR UTILISATION
Publication
Application
Priority
- US 202063067018 P 20200818
- US 2021046198 W 20210817
Abstract (en)
[origin: US2022056368A1] An azeotropic cleaning solvent composition has from about 96 to about 98 weight percent 1,1,1,3,3,3-hexafluoro-2-methoxypropane (“HFMOP”) and from about 2 to about 4 weight percent acetone, for example, about 97 weight percent HFMOP and about 3 weight percent acetone. Another composition of the invention has a weight ratio of HFMOP to acetone of about 24 to about 99, for example, about 24 to 49. Conventional additives such as surfactants, lubricants and co-solvents may be present in an amount not to exceed about 10 weight percent of the composition. A method of the invention comprises contacting an article of manufacture with the solvent composition in order to clean the article of manufacture and then removing the solvent composition from the article of manufacture.
IPC 8 full level
CPC (source: EP US)
C07C 19/08 (2013.01 - US); C07C 43/12 (2013.01 - EP); C07C 49/08 (2013.01 - EP); C11D 1/004 (2013.01 - US); C11D 3/3773 (2013.01 - US); C11D 3/43 (2013.01 - EP); C11D 7/50 (2013.01 - US); C11D 7/5086 (2013.01 - EP); C11D 3/2072 (2013.01 - EP); C11D 3/245 (2013.01 - EP); C11D 7/264 (2013.01 - EP); C11D 7/28 (2013.01 - EP); C11D 2111/14 (2024.01 - EP); C11D 2111/22 (2024.01 - US)
Citation (search report)
See references of WO 2022040114A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
US 11713434 B2 20230801; US 2022056368 A1 20220224; CN 116157498 A 20230523; EP 4200389 A1 20230628; JP 2023537774 A 20230905; TW 202212307 A 20220401; TW I783635 B 20221111; WO 2022040114 A1 20220224
DOCDB simple family (application)
US 202117401565 A 20210813; CN 202180050852 A 20210817; EP 21858919 A 20210817; JP 2023511612 A 20210817; TW 110130421 A 20210818; US 2021046198 W 20210817